the light of somebody’s life
US /ðə laɪt əv ˈsʌmˌbɑdiz laɪf/
UK /ðə laɪt əv ˈsʌmˌbɑdiz laɪf/

1.
la luz de la vida de alguien
a person who is extremely important to someone and makes them feel happy and complete
:
•
His granddaughter is the light of his life.
Su nieta es la luz de su vida.
•
After they adopted the child, she became the light of their life.
Después de adoptar al niño, ella se convirtió en la luz de sus vidas.